In 'Frozen', who is Elsa's younger sister?

In 'Forrest Gump', what is the name of Forrest's Army friend who dreams of shrimping? In 'The Lion King', who is Simba's evil uncle? In 'Toy Story', what is the name of the boy who owns the toys? In 'Frozen', what is the name of the snowman? In 'Beauty and the Beast', what is the name of the heroine? In 'The Little Mermaid', what is the name of the mermaid? In 'Aladdin', what is the name of Aladdin's monkey? In 'Aladdin', what is the name of the villain?